52results about How to "The processing method is scientific and reasonable" patented technology

The invention discloses a water area blue-green algae treatment method based on biological competition principle and a device used therefor, the method comprises the following steps: firstly finding amost easily-enriched area of blue-green algae, namely a concave bank of a water area, arranging an algae blocking net around the most easily-enriched area of the blue-green algae, fast removing a large amount of the blue-green algae in a manual or mechanical fishing mode, planting emergent aquatic plants on the shore of the water area so as to fundamentally improve water quality, arranging treatment tanks in a larger area and in the water area, gradually killing the blue-green algae through the intensively-arranged treatment tanks, collecting dead blue-green algae to prevent the dead blue-green algae from continuously polluting the water area, and collecting and treating the treatment tanks according to a preset rule so as to facilitate the recycling of the treatment tanks.

The invention discloses a method for continuously processing degradation-resistant wastewater by means of microwave catalysis and an implementation device thereof. Granular catalyst is filled into quartz tubes to form quartz tube catalyst columns; the quartz tube catalyst columns are placed into a microwave field to form catalyst fixing beds, wherein the intersection angle of the axial direction of the quartz tube catalyst columns and the direction of the irradiation microwave is not less than 45 degrees; wastewater to be processed continuously flows through the catalyst fixing beds, so that pollutants in the wastewater can be removed under the combined action of the microwave and the granular catalyst; processed water and gas produced during wastewater treatment are discharged; the granular catalyst is husk-like granular activated carbon prepared through carbonization, smashing, bonding formation and carbon dioxide activating treatment. With adoption of the method, continuous industrialized degradation of degradation-resistant wastewater can be realized, the operation is simple, the automatic control is facilitated, the application to different wastewater processing amounts can be realized by means of increasing or decreasing the number of the quartz tube catalyst columns, the investment and the operation cost are low, and the removal efficiency is high.

The invention discloses a treatment method for recycling waste red mud residues. The treatment method comprises the following steps of: firstly, injecting red mud slurry with a water content of 150-300 percent into an infiltration pond for primary dewatering, and after dewatering, obtaining red mud and a sodium hydroxide solution; injecting the sodium hydroxide solution into a liquid collection pond and returning to an aluminum oxide plant for recycling; sending the primarily dewatered red mud into roller kiln for drying to obtain red mud powder; adding an additive to the red mud powder, uniformly stirring and granulating; sinking and floating a mixture material after granulating and then sending the mixture material into a molding machine for pressing and molding into brick blanks; and pouring the brick blanks into a tunnel kiln to dry and burn into clay bricks. Material inlets of the roller kiln and the tunnel kiln are additionally and respectively provided with a waste gas recoverydevice for collecting waste sodium hydroxide gas generated during drying, and the sodium hydroxide solution is obtained through cooling, injected into the liquid collection pond and returned to the aluminum oxide plant for recycling. The method can greatly improve the utilization rate of the red mud, maximally utilize the red mud and change wastes into values. The invention has scientific treatment method, environmental protection and no three waste discharges.

The invention relates to a treatment method of mixed electroplating wastewater, and is characterized in that: organic compounds in the mixed electroplating wastewater are decomposed for a plurality of times through decomposition and reduction reaction, internal electrolytic reduction reaction, neutralization and precipitation, compound absorption, etc., and the decomposition process comprises intensified demulsification, electric field flocculation, hydroxyl group decomposition, molecular absorption and ion exchange; heavy metals are reduced for a plurality of times: ferrous ion reduction, hydrogen reduction and neutralized and precipitated. The treatment devices of the method of the invention are simple and can be easily obtained, the operation is simple and convenient, the land occupancy is small and the construction investment is small. The treatment agent is prepared from normal materials and devices, and the treatment expense can be saved by 30 to 50 percent compared with traditional methods. The invention can be used for treating mixed electroplating wastewater with coexisted copper, nickel, zinc, chromium and COD Cr, with a removal rate generally higher than 96 percent. Thetreatment method of the invention has the advantages of simplicity, short process, small investment, low running expense, high removal efficiency, good treatment effect, and wide popularization value, being bound to have remarkable social and economic benefits.

A method for using parts and parts processing molds and accessories for washing and sweeping vehicles belongs to the technical field of mechanical engineering. A noise reduction suction port is composed of a suction port base, a suction port cover plate and a spoiler; The mold, the upper mold core, the lower mold core and the guide rod are connected; the suction cover processing mold is composed of an upper mold and a lower mold; the noise reduction suction port adopts a combined design, which is easy to disassemble and install. It is processed by casting molding, the processing method is scientific and reasonable, the manufacturing speed is fast, and large-scale processing can be realized in the same process. When the invention works, the suction cover has 4 spoilers with different angles to divide the inhaled airflow and pass it through. The sound waves coming in from different angles will cancel each other out, dissipate part of the sound waves through the crests or troughs of the spiral groove, and conduct through the spiral groove, so as to achieve the purpose of noise reduction, which can effectively reduce the noise of the air flow of the cleaning vehicle fan.